Resistance Electric current loses energy as it moves through the filament because the filament resists the flow of electrons.
{"Image DocumentName": "ResistanceElectric current loses energy as it moves through the filament because the filament resists the flow of electrons.", "Image ImageDescription": "Resistance is the tendency for a material to oppose the flow of electrons, changing electrical energy into thermal energy and light. SI unit for resistance = ohms (\u03a9) After 2nd bullet: All materials have some electrical resistance. Conductors have much less resistance than insulators. After 3rd bullet: Ohms are symbolized by the greek letter omega. Read last paragraph on page 205. Ask students: Should the heating elements on a stove tope be made of a high-resistance or low-resistance material? high resistance (You want the electrical energy changed into thermal energy). Read Resistance in Wires on page 206 and click on pic.", "Image XResolution": "37", "Image YResolution": "37", "Image ResolutionUnit": "Pixels/Centimeter", "Image Software": "SlidePlayer", "Image YCbCrPositioning": "Centered"}